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Advisory severityHigh8.8Red Hat Linux

High [CVE-2026-70495] cluster-wide impersonate on users/groups shared across 4 pods grants hub system:masters

This high-severity Red Hat Linux advisory covers CVE-2026-70495 affecting Red Hat Advanced Cluster Management for Kubernetes 2.11, Red Hat Advanced Cluster Management for Kubernetes 2.13, Red Hat Advanced Cluster Management for Kubernetes 2.14.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-70495 Source published Source updated

VulniPulse record published Record updated

CVE-2026-70495
Affected products & platforms
Red Hat LinuxUnclassified
Open source advisory

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Summary

A flaw was found in search-v2-operator. This component's `search-serviceaccount` has overly broad permissions, allowing it to impersonate users and groups across the entire cluster.

If an attacker gains access to any of the pods running under this service account, they could exploit this to achieve `system:masters` access, granting them full control over the cluster. This escalation of privilege poses a severe risk to the integrity and control of the Red Hat Advanced Cluster Management for Kubernetes environment.

Red Hat severity: Important — CVSS 8.8 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H). Weakness: CWE-269.

Red Hat fixing advisory: RHSA-2026:60387, RHSA-2026:60390, RHSA-2026:60388, RHSA-2026:60389, RHSA-2026:60391, RHSA-2026:60386.

Affected products named by the advisory: Red Hat Advanced Cluster Management for Kubernetes 2.11; Red Hat Advanced Cluster Management for Kubernetes 2.13; Red Hat Advanced Cluster Management for Kubernetes 2.14; Red Hat Advanced Cluster Management for Kubernetes 2.15; and 2 more.

Affected products named by the advisory: Red Hat Advanced Cluster Management for Kubernetes 2.16; Red Hat Advanced Cluster Management for Kubernetes 2.17.

Affected versions

No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.

Official advisory · high-confidence parse· fetched 23 days ago·verify at source

Fixed versions
  • rhacm2/acm-search-v2-rhel9:1787688827
  • rhacm2/acm-search-v2-rhel9:1787682112
  • rhacm2/acm-search-v2-rhel9:1787682033
  • rhacm2/acm-search-v2-rhel9:1787681674
  • rhacm2/acm-search-v2-rhel9:1787681686
  • rhacm2/acm-search-v2-rhel9:1787681651
  • RHSA-2026:60387
  • RHSA-2026:60390
  • RHSA-2026:60388
  • RHSA-2026:60389
  • RHSA-2026:60391
  • RHSA-2026:60386

Official advisory · high-confidence parse· fetched 23 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

Official advisory · high-confidence parse· fetched 23 days ago·verify at source

Discussion(0)

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